Inorganic-organic hybrid structures: Open-framework iron phosphite-oxalates of varying dimensionality

被引:40
作者
Mandal, Sukhendu [1 ]
Natarajan, Srinivasan [1 ]
机构
[1] Indian Inst Sci, Solid State & Struct Chem Unit, Framework Solids Lab, Bangalore 560012, Karnataka, India
关键词
iron; magnetic properties; oxalates; phosphites; structure elucidation;
D O I
10.1002/chem.200601026
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Inorganic-organic hybrid structures belonging to the family of iron phosphite-oxalates have been prepared by employing hydrothermal methods. Their structures, determined by single-crystal X-ray diffraction, show a hierarchy within the family. While compounds I and II are low dimensional, III-VI have three-dimensional structures. Compound I has edge-shared ladders of iron phosphite with oxalate units hanging from the iron centers. Compound II has a layer structure with a honeycomb-like arrangement. The three-dimensional hybrid structures have the oxalate units connected in both in-plane and out-of-plane modes. A newly identified secondary building unit (SBU-7) and the oxalate units satisfying the valence and coordination requirements in the structure of V are novel and noteworthy structural features. Magnetic studies show that the dominant interactions between the iron centers are antiferromagnetic. Similar to other known hybrid structures, the phosphite-oxalate structures appear to show wide compositional and structural diversity.
引用
收藏
页码:968 / 977
页数:10
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